HappyHorse is the leading AI video generation platform built on the HappyHorse 1.0 model — a 15-billion-parameter unified Transformer ranked #1 on the Artificial Analysis Video Arena. Unlike other AI tools, HappyHorse jointly produces cinematic 1080p video and perfectly synchronized audio in a single denoising pass. Whether you start from a text prompt or a reference image, the platform delivers production-ready output with native lip-sync in Chinese, English, Japanese, Korean, German, and French — no editing skills or GPU hardware required.